Effect of Electrolyte Level during Electro Chemical Discharge Machining of Glass
Effect of Electrolyte Level during Electro Chemical Discharge Machining of Glass
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DOI：
10.1149/2.1021807jes
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发表时间：
2018
影响因子：
3.9
通讯作者：
P. Gupta
中科院分区：
文献类型：
--
作者：
P. Gupta
电化学放电加工（ECDM）是一种混合加工工艺。该工艺在玻璃等非导电工作材料的微加工中具有潜在的应用前景。玻璃上的微孔和微通道广泛应用于微电子机械系统和生物医疗设备中。ECDM工艺是在电解槽中进行的，电解液在工件上达到一定的高度。电解液的浓度直接影响微孔或微通道的加工效率和加工质量。本文研究了电解液浓度在0.1 ~ 4mm范围内变化对ECDM工艺响应的影响。工艺响应是材料去除率、切削深度、热影响区和过切。通过火花放电表征了电解液浓度对电压时间波形和显微图像的影响。结果表明，精密加工需要一个最佳的电解液液位值。
Electro chemical discharge machining (ECDM) is a hybrid machining process. This process has potential application for micro fabrication in nonconductive work materials such as glass. Micro fabricated holes and channels on glass are widely used in micro electro mechanical systems and bio medical devices. ECDM process takes place in an electrolytic cell consisting electrolyte upto certain level above workpiece. This electrolyte level affects the machining efficiency and quality of fabricated micro hole or channel. In this article, the electrolyte level was varied from 0.1 to 4 mm to investigate the effect on process responses of ECDM during fabrication of micro hole in glass. The process responses were material removal rate, depth of cut, heat affected zone and overcut. The effect of electrolyte level was characterized by spark discharge on voltage time wave form and microscopic images. The results revealed that an optimal value of electrolyte level is required for precise machining.